ACE_Timer_Wheel_Iterator_T< TYPE, FUNCTOR, ACE_LOCK, TIME_POLICY > Class Template Reference

Iterates over an ACE_Timer_Wheel. More...

#include <Timer_Wheel_T.h>

Inheritance diagram for ACE_Timer_Wheel_Iterator_T< TYPE, FUNCTOR, ACE_LOCK, TIME_POLICY >:

Collaboration diagram for ACE_Timer_Wheel_Iterator_T< TYPE, FUNCTOR, ACE_LOCK, TIME_POLICY >:

Public Types
typedef ACE_Timer_Wheel_T< TYPE, FUNCTOR, ACE_LOCK, TIME_POLICY >	Wheel
typedef ACE_Timer_Node_T< TYPE >	Node

Public Member Functions
	ACE_Timer_Wheel_Iterator_T (Wheel &)
	Constructor.
virtual	~ACE_Timer_Wheel_Iterator_T ()
	Destructor.
virtual void	first ()
	Positions the iterator at the earliest node in the Timer Queue.
virtual void	next ()
	Positions the iterator at the next node in the Timer Queue.
virtual bool	isdone () const
	Returns true when there are no more nodes in the sequence.
virtual ACE_Timer_Node_T< TYPE > *	item ()
	Returns the node at the current position in the sequence.
Public Member Functions inherited from ACE_Timer_Queue_Iterator_T< TYPE >
	ACE_Timer_Queue_Iterator_T ()=default
	Constructor.
virtual	~ACE_Timer_Queue_Iterator_T ()
	Destructor.
virtual void	first ()=0
	Positions the iterator at the earliest node in the Timer Queue.
virtual void	next ()=0
	Positions the iterator at the next node in the Timer Queue.
virtual bool	isdone () const =0
	Returns true when there are no more nodes in the sequence.
virtual ACE_Timer_Node_T< TYPE > *	item ()=0
	Returns the node at the current position in the sequence.

Protected Attributes
Wheel &	timer_wheel_
	Pointer to the ACE_Timer_List that we are iterating over.
u_int	spoke_
	Current position in the timing wheel.
ACE_Timer_Node_T< TYPE > *	current_node_
	Pointer to the position in the the <pos_>th list.

Private Member Functions
void	goto_next (u_int start_spoke)
	Helper class for common functionality of next() and first()

Detailed Description

template<class TYPE, class FUNCTOR, class ACE_LOCK, typename TIME_POLICY = ACE_Default_Time_Policy>
class ACE_Timer_Wheel_Iterator_T< TYPE, FUNCTOR, ACE_LOCK, TIME_POLICY >

Iterates over an ACE_Timer_Wheel.

This is a generic iterator that can be used to visit every node of a timer queue. Be aware that it doesn't traverse in the order of timeout values.

Member Typedef Documentation

Node

template<class TYPE , class FUNCTOR , class ACE_LOCK , typename TIME_POLICY = ACE_Default_Time_Policy>

typedef ACE_Timer_Node_T<TYPE> ACE_Timer_Wheel_Iterator_T< TYPE, FUNCTOR, ACE_LOCK, TIME_POLICY >::Node

Wheel

template<class TYPE , class FUNCTOR , class ACE_LOCK , typename TIME_POLICY = ACE_Default_Time_Policy>

typedef ACE_Timer_Wheel_T<TYPE, FUNCTOR, ACE_LOCK, TIME_POLICY> ACE_Timer_Wheel_Iterator_T< TYPE, FUNCTOR, ACE_LOCK, TIME_POLICY >::Wheel

Constructor & Destructor Documentation

ACE_Timer_Wheel_Iterator_T()

template<class TYPE , class FUNCTOR , class ACE_LOCK , typename TIME_POLICY >

ACE_Timer_Wheel_Iterator_T< TYPE, FUNCTOR, ACE_LOCK, TIME_POLICY >::ACE_Timer_Wheel_Iterator_T

(

Wheel &

wheel

)

Constructor.

Just initializes the iterator with a ACE_Timer_Wheel_T and then calls first() to initialize the rest of itself.

Parameters

wheel

A reference for a timer queue to iterate over

~ACE_Timer_Wheel_Iterator_T()

template<class TYPE , class FUNCTOR , class ACE_LOCK , typename TIME_POLICY >

ACE_Timer_Wheel_Iterator_T< TYPE, FUNCTOR, ACE_LOCK, TIME_POLICY >::~ACE_Timer_Wheel_Iterator_T

virtual

Destructor.

Destructor, at this level does nothing.

Member Function Documentation

first()

template<class TYPE , class FUNCTOR , class ACE_LOCK , typename TIME_POLICY >

void ACE_Timer_Wheel_Iterator_T< TYPE, FUNCTOR, ACE_LOCK, TIME_POLICY >::first

virtual

Positions the iterator at the earliest node in the Timer Queue.

Positions the iterator at the first position in the timing wheel that contains something. spoke_ will be set to the spoke position of this entry and current_node_ will point to the first entry in that spoke.

If the wheel is empty, spoke_ will be equal timer_wheel_.spoke_count_ and current_node_ would be 0.

Implements ACE_Timer_Queue_Iterator_T< TYPE >.

goto_next()

template<class TYPE , class FUNCTOR , class ACE_LOCK , typename TIME_POLICY >

void ACE_Timer_Wheel_Iterator_T< TYPE, FUNCTOR, ACE_LOCK, TIME_POLICY >::goto_next ( u_int  start_spoke )

private

Helper class for common functionality of next() and first()

isdone()

template<class TYPE , class FUNCTOR , class ACE_LOCK , typename TIME_POLICY >

bool ACE_Timer_Wheel_Iterator_T< TYPE, FUNCTOR, ACE_LOCK, TIME_POLICY >::isdone

virtual

Returns true when there are no more nodes in the sequence.

Returns

True when we there aren't any more items (when current_node_ == 0)

Implements ACE_Timer_Queue_Iterator_T< TYPE >.

item()

template<class TYPE , class FUNCTOR , class ACE_LOCK , typename TIME_POLICY >

ACE_Timer_Node_T< TYPE > * ACE_Timer_Wheel_Iterator_T< TYPE, FUNCTOR, ACE_LOCK, TIME_POLICY >::item

virtual

Returns the node at the current position in the sequence.

Returns

The node at the current spokeition in the sequence or 0 if the wheel is empty

Implements ACE_Timer_Queue_Iterator_T< TYPE >.

next()

template<class TYPE , class FUNCTOR , class ACE_LOCK , typename TIME_POLICY >

void ACE_Timer_Wheel_Iterator_T< TYPE, FUNCTOR, ACE_LOCK, TIME_POLICY >::next

virtual

Positions the iterator at the next node in the Timer Queue.

Positions the iterator at the next node.

Implements ACE_Timer_Queue_Iterator_T< TYPE >.

Member Data Documentation

current_node_

template<class TYPE , class FUNCTOR , class ACE_LOCK , typename TIME_POLICY = ACE_Default_Time_Policy>

ACE_Timer_Node_T<TYPE>* ACE_Timer_Wheel_Iterator_T< TYPE, FUNCTOR, ACE_LOCK, TIME_POLICY >::current_node_

protected

Pointer to the position in the the <pos_>th list.

spoke_

template<class TYPE , class FUNCTOR , class ACE_LOCK , typename TIME_POLICY = ACE_Default_Time_Policy>

u_int ACE_Timer_Wheel_Iterator_T< TYPE, FUNCTOR, ACE_LOCK, TIME_POLICY >::spoke_

protected

Current position in the timing wheel.

timer_wheel_

template<class TYPE , class FUNCTOR , class ACE_LOCK , typename TIME_POLICY = ACE_Default_Time_Policy>

Wheel& ACE_Timer_Wheel_Iterator_T< TYPE, FUNCTOR, ACE_LOCK, TIME_POLICY >::timer_wheel_

protected

Pointer to the ACE_Timer_List that we are iterating over.

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The documentation for this class was generated from the following files:

• Timer_Wheel_T.h
• Timer_Wheel_T.cpp